AquaChek 561625A Blue Biguanide Test Strip for Swimming Pools<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>User friendly easy-grip bottle with flip-top strip dispenser cap</li><li>Includes water chemistry insert with directions</li><li>25 Strips/Bottle</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51CCfPG9esL.jpg" noproxy>